Locomotive automatic stoker.



s. D.GR1FPIN.' LOGOMOTIVB AUTOMATIC STOKER. APPLICATION FILED JULY 27, 1909.

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atrium,

y SJ D. GRIFFIN.

LOGOMOTIVB AUTQMATIG STOKER. n APPLIGATION HLb JULY 27. 1909.

Patented 1181111910.

MEETS-SHEET 2.

-oiisl'y" v vitli'tle'stoking operation. i, ,diatfel Beneaththe bottoni'oflthe receptziole )I Qther 'objects and advantages vvill be Yap;

3 5 V ,garetj as" the nature; ofv the invent-'io'ii''is The rearfendfof the reeeptafclel is 'supported in which likeehmctefsof ber .eprviqipgit bangingresisting-egg; i

longitudinally of the-receptacle 1 and is dis-v osed -with a. portionbeneath the passages ormed in the topof said receptacle. A stationary egine 13 is mounted upon the top of the receptacle 1 at a oint ad] acentto 'the forward end thereof.v he engine can be of any suitable construction, but will be briefly descrlbed as. having a steam chest 14 to steam' to the chest 14.A Th'e engine 13o )er- -ates a drive shaft 18. whiehis mounte in "suitable'bearin s which arise from-the top ofthe receptac e 1.' 'The drive shaft is provided with a vsprocketgear 19'which is -located iinmediately'above a sprocket gear 20 l.carried by a'countershaft 21. '.As shown in i -the.draw1ng`s,.the'p1stoii of theengine 13 is operatively connected with a pitman rod 22 which has its' rear end .connected with the cranlrof Vthe'shaft 18, but I do not desire to limit myself tofthis construction as it i s obvious that any means may be employed for A imparting rotary' movement. tothe shaftI 1S.

In order thatthecountershaft 2l'will be revolved simultaneouslyV with a corresponding movement to the shaft- 18, connect the former -with vthe'1attcr. by lmeans .A of a s 'rocket chain 23... A pair of horizontally isposed revoluble shafts 24are mounted at their ends in.4 the sidewalls of the receptacle' 1,.each shaft bcingprovided with al pair of.

'sprocket gears 25. The gears 25 upon the said shaft Aaref disposed' mljlin'e with 'each other andjreceive'sprocket lchains 26.' It will be` seen .that the s rocketjzchains are suitably spaced from eac y other and are arranged in juxtapositionto the sidewalls of the receptacleu1.-.g'lhe 'chains' 26. are connected toeach other by means of an endless carrier or belt v27 of anysuitable construction. The .shaft 24j whichv is located adjacent to the forward end of the rece taclc is I '.provided'with sprocket gears' 28W ich are connected-by means of drive chains 29 'with' i5-sprocket ears 3,0 i'1pon the countershalft 21.

l A 'nin ined table-31 is mounted within l the receptacle .1 andis locatedgimmediately beneath thes'piral conveyer 12 and as shown,

this table'. has its forwardv end -dispos'ed slightly above the rear en'd of the beltf 27 vso that coal "fed fromthespiral'conveyenwll I I' be de SitwuPOnL-the- Upper' 10aa of the belt 21;.0 *y A A sliding gate 32 is mounted upon .the .top

of the r'eceptacle'l ata pointin advance'of the engine-13. `The gate 32I consists of a llongltudinally lextending rod 33 which4 is provided at itsforward end with a closure 34. The rear end of the rod 33 isl connected by means of a link 35 with an operating lever 36 .which is provided with a suitable pawl "37 adapted for cooperation with a rack segment 38. The location of the gate 32 1s 'loi such that the level` `36 can' be operated so that the4 closure 34 can be thrown across the passage 8 formed in the receptacle 1 so thatl communication between the receptacle and .Y the hopper F .of the tender can be closed.

WhenA t ev closure 34 is'moved away from 'the opening 8, it will be seen that coal within the'tenderB. will be free to fall'by gravity throuh theopening 8, whereupon, 1t may be ta sha-ft 24 adjacent to the rear end of-the re-A ceptacle 1 has one of its ends extended outwardly of one of the sides of the receptacle and has securedl thereto a .sprocket gear 39 en up by the spiral conveyer. The

which is connected by means of a chain 40-A to a' sprocket gear41 upon a` shaft 42. The shaft 42-is carried by the rear wall of the receptacle 1 4and has secured theretoa worm or'screwfgear43 adapted to intermesh with a worm gear 44 atthe rear end of the shaft '11. This-construction is such that power is simultaneously" applied"V to .the vspiral conveyer and to the endless belt 27.

`lt will, of course, be understood that the grate bars of the locomotive furnace can be of any suitable well known construction, but in this instance', thel grate bars are of the rocking type and are adapted' to operate.

within -the tire box. A shakinga'pparatus is illustrated at 45 and consists of a stub shafti46iwhichl extends from one of the side walls" of the receptaclel and has secured thereto a crank wheel or eccentric 47 whichis provided with a peripheral" series ofsprocket teeth 48. The teeth of the wheel 47 are located beneath the lowermost lead of one of the drive chains-29 and are adapted.

to mesh with the chainsfin a manner to be hereinafter stated. The rate' of the furl nace is provided with a sli ing rod 49 which is connected at one end to a pitman rod 50' carriedV by the wheel 47,4 A vlever 51 is piv.- `otally mounted tofone of the side walls of the receptacle- '1 and is provided with a pawl 52 adjustably' connected with a rack bar 53.

The 'lever 51 is'provided with anlangularly disposed portion 54 which carries at its forward extremity a p'in 55 'which is located. betweenthe upper-'and :lower leads of one ,of

the'chains 29.' The pin 55'carriesa revolub-le roller 5e. 'which indapteawhen the lever 5.1 s'actuated in one direction,".to bev forced against the lowermost lead. of the chain previdusly'described, so that lthe links 4of the 'chain can be 'forced into mesh vwith theperipheral serie's'ofteeth upon the wheel 47; 'l Assuming'the engine to be 1n opera-4 t boiler lcatory tion, it will be seen that when the lever "51 is actuated in the manner -just described, so

that the chain will mesh with the teeth ofthe wheel 41, the latter'will be revolved and will actuate .the pitman; rod 50 so as to effectively lim art to the rod 49 .a reciprocatoryor sli ing movement.

In-operation of the Stoker, steam from the C can be-dischar ed into the `steam chest of the engine 13, w ereb vthe recipromotion will bennparte to the piston of the engine so that in turn such "motion l will impart the desiredrotarymovement to that the coal from the tender will sure 34' is move the sha t 18, hence the'various hereinbeforc vdescribed operative parts of the Stoker will be simultaneousliy operated. lVhen the cloformed in the receptacle l, it wi fall by gravity upon the spiral conveyer 12,

. movement of said conveyer, the coal will be carriedforwa-rdly and will be dumped or discharged upon' the rear end Aof the endless belt 27. It is, thought that further description relative to the o ration of the a paratus isV unnecessary,

. stated that any movement of the belt 27, the

coal collected thereby, .will be finally deposited into the furnace D of the locomotive\ by way of the fire door E. I i' The receptacle l is provided-at apoint adjacent to the furnace-'0f the locomotive with' I Va damper 1 which can be operated to introi duce the desired .quantitfoiair into the furnace as will .be understood.l

What is lclaimed .is Y 1. The combination with a furnace having away from the assage 8 ll be seen,

and in 1not1ve,

ut it :will be brieliy a gratefcarried reciprocatin bar, of astoker comprising la receptacle, sai rece tacle having a forward openend portion ispos'ed m line with the fire door openin of the furnace, a conveyerilocatedwithm the recep# tacle', a hopper communicating with the conveyer, a revolub'le crank whee y receptacle, operativeY connections between the crank wheel and the sliding bar, said crank wheel being provided with a peripheral series of gear teeth, a motor operated drive chainv connected with the said conveyer, and means for actuatin the -drive chain so that the links thereof will be thrown into meshv with the said' peripheral teeth of the crank wheel.

carried by the 'A 2. In an apparatus of the class described, I

a. locomotive and tender therefor, a receptacle opening at one end into the'ten'der and atitsiothe'r end into. the furnace of the loco- VVitnes'ses:

W.' R. HICKS, G. WILEY.

a conveyer operating in the recepA-f driving means for the conveyer, aA Y.

6o said recipro- STANTON D. GRIFFIN.Y 

